| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 9 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Headlamp aim out of alignment | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Registration plate issues | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Rear suspension component misaligned |2.4.A.1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Upper Steering linkage has excessive free play |2.2.2| | 1 |
| Front Front suspension assembly component missing shock absorber nut missing |2.3.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride hub nut adjusted and new split pin |6.2.1h| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on dipped beam |1.1.3a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Centre Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Sidecar attachment insecure |5.1.1b| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Throttle operating incorrectly stiff and not returning to idle |6.2.1f| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |